Document Type

Thesis - Open Access

Award Date

1971

Degree Name

Master of Science (MS)

Department

Civil Engineering

Abstract

In the field of sedimentation, researchers have been frequently confronted with the problem of separating fine sediments into different sizes. During the last two decades, much effort has been extended on the size analysis of sediments and numerous reports on methods of sediment size analysis have been published. Among these various methods, sieve analysis and V.A. Tube analusis developed by the U.S. Geological Survey have been found to be quite adequate for the analysis of coarse and medium sand of diameter larger than 0.1 mm (1). For fine sand analysis, some methods, such as decantation, elutriation, and incremental (2), are available and they are considered satisfactory. In recent years critical laboratory studies have emphasized many subjects in the field of sedimentation. Due to uncertainties of the effect of the grading and the representative diameter f mixed sand, uniform sand has often been used for these studies in order to avoid reaching inaccurate conclusions. A large quantity of uniform sand of specified size is, therefore, needed for this purpose. Uniform sand is usually not available naturally and it must be obtained by means of separating natural sand. Uniform sand of larger size can be obtained by sieving, however, a practical device is not available for separating a large quantity of fine uniform sand. Hence, the need for development of a rapid, accurate and reliable device for a mass production of fine uniform sand is apparent. Hopefully, the same device may also be used for size analysis of fine sand of smaller quantity.

Library of Congress Subject Headings

Sedimentation analysis

Format

application/pdf

Number of Pages

63

Publisher

South Dakota State University

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